The document outlines seven common mistakes made by negotiators and provides tips to avoid them. It notes that 62% of professionals surveyed said they were not good at negotiating. The seven mistakes identified are lack of preparation, poor first impressions, bad questioning and listening skills, improper body language and lying, ineffective tactics and strategies, poor haggling abilities, and lack of confidence. The author encourages readers to visit his website and social media for more information on improving negotiation skills.